Washing machine



FIG. 1 is a top perspective view of a washing machine showing our new design;

FIG. 2 is a front elevational view;

FIG. 3 is a left side elevational view;

FIG. 4 is a right side elevational view;

FIG. 5 is a top view;

FIG. 6 is a rear elevational view; and,

FIG. 7 is a bottom plan view. 

The ornamental design for a washing machine, as shown. 